![Huawei Quidway S5600 Operation Manual Download Page 722](http://html.mh-extra.com/html/huawei/quidway-s5600/quidway-s5600_operation-manual_169841722.webp)
Operation Manual - QoS&QoS Profile
Quidway S5600 Series Ethernet Switches
Chapter 1 QoS Configuration
Huawei Technologies Proprietary
1-10
Packets sent via this interface
queue1 weight1
queue2 weight2
Classify
Packets sent
queueN-1 weightN-1
queueN weightN
Sending queue
……
Dequeue
Packets sent via this interface
queue1 weight1
queue2 weight2
Classify
Packets sent
queueN-1 weightN -1
queueN weightN
Sending queue
……
Dequeue
Packets sent via this interface
queue1 weight1
queue2 weight2
Classify
Packets sent
queueN-1 weightN-1
queueN weightN
Sending queue
……
Dequeue
Packets sent via this interface
queue1 weight1
queue2 weight2
Classify
Packets sent
queueN-1 weightN -1
queueN weightN
Sending queue
……
Dequeue
Figure 1-6
Diagram for WRR
WRR queue-scheduling algorithm schedules all the queues in turn and every queue
can be assured of a certain service time. Assume there are 8 priority queues on the port.
WRR configures a weight value for each queue, which are w7, w6, w5, w4, w3, w2, w1,
and w0. The weight value indicates the proportion of obtaining resources. On a 100M
port, configure the weight value of WRR queue-scheduling algorithm to 50, 50, 30, 30,
10, 10, 10 and 10 (corresponding to w7, w6, w5, w4, w3, w2, w1, and w0 in order). In
this way, the queue with the lowest priority can get 5Mbps bandwidth at least, and the
disadvantage of SP queue-scheduling that the packets in queues with lower priority
may not get service for a long time is avoided. Another advantage of WRR queue is that:
though the queues are scheduled in order, the service time for each queue is not fixed,
that is to say, if a queue is empty, the next queue will be scheduled. In this way, the
bandwidth resources are made full use of.
1.1.12 Traffic-based Traffic Statistics
The function of traffic-based traffic statistics is to use ACL rules in traffic identifying and
perform traffic statistics on the packets matching with the ACL rules. You can get the
statistics of the packets you are interested in through this function.
1.2 QoS Supported by S5600
Table 1-4
QoS functions supported by S5600 and related commands
QoS
Specification
Related command
Priority
mapping
Support only the mapping
between 802.1p priority and
local queues
qos
cos-local-precedence-map
Port priority
Supported
priority
priority-level
priority
trust